The Ride the Route charity bike ride ended in Darlington. This is the location of the first passenger railway in the world and the route from Stockton to Darlington crossed the river in Darlington on this bridge. The railway still runs across the bridge and so it is listed as the oldest working railway bridge in the world. No idea whether this is undisputed or not and I don’t really care! It’s 200 years old and that’s not nothing.